Adjustable fixture strap



Sept. 14 Q1926, 1,599,932

M. P. TAX

ADJUSTABLE FIXTURE STRAP Original Filed bet. as, 19 3 Patented Sept. 14, 1926.

MORRIS P. TAX, 035 MILWAUKEE, WISCONSIFT.

ADJUSTABLE FIXTURE STRAP.

.. Application filed October 26, 1923, Serial No. 6?0,867. Renewed August 4, 1955-6.

This invention relates to adjustable fixture straps.

Objects t this invention are to provide an adjustable fixture strap which eliminates the usual elongated non-adjustable threaded pipe employed in positioning canopies and the central portion of compound fixtures, to provide an adjustable fixture strap which does not require the twisting of the wires after the strap has been positioned when the canopy is being fastened thereon, and to pro vide an adjustable fixture strap which will cooperate with the usual open work fitting commonly known as a hickey. Further obcots are to provide an adjustable fixture strap which is rigidin construction, which may be formed primarily from pressed sheet material, which may be formed very cheaply, and which may be adjusted to the exact needs of the fixture.

Embodiments of the invention are shown in the accompanying drawings, in which Figure 1 is a vertical sectional view through a canopy with the adjustable fixture strap in position.

Figure 2 is a corresponding view otthe central member of a pendent fixture showing a further use of the strap.

Figure 3 is a detail of one portion of the strap such as used in Figure 1.

Figure 41: is a corresponding detail of the strap as used in Figure 2.

Figure 5 is a sectional view on the line 5-5 of Figure 1.

Figure 1, showing the first form, will be described.

A hickey 1 is screwed upon the nipple 2 which projects beyond the ceiling line 3 in the usual manner.

The adjustable fixture comprisnig an upper strap-like member 4 and a lower strap-like member 5 slidably or telescopically related and, as shown in Figure 5, formed of channel sections so as to pro- Vide increased stiffness. The end portions ot these members are inwardly turned, as

indicated at 6 in Figure 3, and are provided with outwardly projecting threaded nipples 7 which are swaged, riveted or otherwise secured to these inwardly extending ends.

The members i and 5 are provided with a plurality of apertures 8 adapted to register and to afford adjustment. A bolt or screw 9 is passed through registering apertures and securely clamps the strap in its adjusted position.

After the strap has been screwed into the hiclrey 1, the canopy 10 is slipped over the lower nipple 7 and a suspension member 11, provided with an aperture 12 adapted to freely slide over the threaded nipple 7, is then-slipped over such nipple. An ornamental loclr nut such as the knurled nut 13 is then screwed upon the lower end of the nipple 7 and holds the member 11 in position.

It will thus be seen that the wires may be passed through the lower nipple 7 and outwardly, and that such wires are not twisted in any manner when the suspension member 11 is positioned, as it is not necessary to screw the member in place. This is a highly desirable feature and overcomes one of the serious diificulties encountered in hanging fixtures.

In the form shown in Figure 2 substantialy the same ldea 1s followed. In this form of the invention the central portion of the fixture comprises a hollow casing formed of an upper portion 14 and a lower portion 15 which are adapted to be separated at any desired point. Within this fixture an adjustable strap member, similar to that previously described, is provided and comprises an upper member 15 and a lower member 16 of greater extent than the corresponding members illustrated in Figure 1 and provided with a larger number of apertures to secure an extensive adjustment. These members are clamped together by means of a screw or bolt 17, as previously described, and the upper threaded nipple 18 is passed through the upper aperture in the casing member 141-, and the lower threaded I nipple 19 is passed through the lower aperture in the casing. An oranmental nut 20 is screwed upon the lower nipple and clamps the casing in position. The upper nipple has slipped thereon a suspension member 21 which is provided with an aperture 22 adapted to freely slide over the upper nipple 18. An ornamental lock nut 23 is then screwed upon the projecting end of the nipple and firmly clamps the parts in their relative positions.

Figure 4- shows the upper member 15 and a fragmentary portion of the lower mem ber 16. Tt is to be noted that the body portions of the members 15 and 16 are offset adjacent their ends and are provided with inwardly turned portions 2 to which the corresponding threaded nipples are riveted,

swaged or otherwise secured. This offsetting of the members places the main or body portion of the straps l5 and 16 substantially in the axial line of strain of the, fixture.

Obviously, the same ofl'set construction may be employed even for the shortstraps, as illustrated in Figure 1.

It will thus be seen that an adjustable fixture st 'ap has been provided which is of extremely simple construction, which is very rigid, which is of extremely cheap construction and which fulfills a need ever present in fixture hangings.

Although a few forms of the invention have been described in considerable detail, it is to be understood that the invention may be variously embodied and is, therefore, to be limited only as claimed.

I claim:

An adjustable fixture strap comprising 21 pair of overlapping and interfitting elongated channel members having a plurality oi? registering apertures, a locking bolt passing through a pair of said registering apertures and holding one channel member tightly within the other channel member, one of said channel members constituting a guide for the other channel member and said channel members bracing each other throughout their overlapping portions, said channel members having transversely bent end POIP tions provided with rigidly secured threaded nipples, and said channel members having their overlapping portions in approximate alignment with the axis of said nipple.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee,

in the county of Milwaukee and State of Wisconsin.

MORRIS P. TAX, 

